n: 40 m: 631 packed: 13 density: 0 nodes: 0 solveTime: 31990 buildTime: 230 solved: true
{0,6,30}
{1,23,38}
{2,22,36}
{3,7,28}
{5,25,37}
{8,14,34}
{9,21,31}
{10,20,24}
{11,18,32}
{12,27,39}
{13,15,19}
{16,29,35}
{17,26,33}